Making a presto pot stirrer?

[MACHINIST]

I am looking at a slow rpm motor(60) on ebay right now and it says that it has 30 inch pounds of power.Would this be enough for a stirrer setup or would I need more arse to get-er-done

[saint308]

I use a cheap variable speed drill from Harbor Freight. I think the brand name is Chicago, it is bright orange. It works like a charm and was around $20. Saint.

[mbroggi1]

Machinist. I just bought a Harbor Frieght 1/2 " low rpm drill that is 0-500 rpm. I had been looking all over for a cheap motor as well. I cant install it till next week but will let you know I make out and I would like some feed back on your setup. What is the price? I've seen a few but price is really high.

This one is $39.99

[Delw]

30" lbs of torque is less than 3 foot lbs thans not very much at all. I would look for something a little heavier.

In its liquid state it would be fine but after the plastic cooks I think it would be too small.

[MACHINIST]

30" lbs of torque is less than 3 foot lbs thans not very much at all. I would look for something a little heavier.

In its liquid state it would be fine but after the plastic cooks I think it would be too small.[/quotE

That is what I thought also but figured that I would ask.Alchi I bought the drill and stand that you bought with a router control to control the speed but I thought that the drill would die in short order with long term use,Most hand held drills are not made to turn the spindle for long periods of time.I also bought the two year extended warranty so I am good for a couple of years.

[Vodkaman]

30 inch pounds means that the machine has enough torque to move a one pound force around at a distance of 30 inches. Applying moments (force x distance), this means at a radius of 5 inches, the motor is capable of moving 6 pounds around, a 4 inch radius would move 7.5 pounds.

I think that the motor could be capable of doing the job. If the paddle was not a solid plate, but fingered, then even less load would be moved. But, I have never tried to stir half a gallon of plastic!

I would be thinking about the speed, is one rev per second too fast. What speed do others use.

I respect Dels input, he deals with motors and real engineering on a daily basis, whereas I deal in theory. But you now have all the facts. If the motor is really cheap, it could be worth a try.

[MACHINIST]

The motor is 68.00 plus shipping so it is nothing that I am going to gamble on not working for me.I have other things that I would rather spend the money on like setting up my pour station.

[Vodkaman]

Sounds like a good decision to me.

[Delw]

30 inch pounds means that the machine has enough torque to move a one pound force around at a distance of 30 inches. Applying moments (force x distance), this means at a radius of 5 inches, the motor is capable of moving 6 pounds around, a 4 inch radius would move 7.5 pounds.

I think that the motor could be capable of doing the job. If the paddle was not a solid plate, but fingered, then even less load would be moved. But, I have never tried to stir half a gallon of plastic!

I would be thinking about the speed, is one rev per second too fast. What speed do others use.

I respect Dels input, he deals with motors and real engineering on a daily basis, whereas I deal in theory. But you now have all the facts. If the motor is really cheap, it could be worth a try.

your right on the money but dont forget that motors with there rating are taking at a certain dia. if I remember corectly double the shaft size. so that might be like 1/2? I am not a motor guy not even close

now take the paddles out to 5" your increasing the lbs per sq inch as you have more material to move. so if your paddles are 5" dia and 3-4" high you have alot more torque than if it was at a 1/2 dia.

[Vodkaman]

Del, you are correct, but it is the same thing. Ft-Lb is a unit of energy or work, when something is rotating, it is called torque. It is all the same thing and comes back to moments, lever principal, Force(Lbs) x distance (ins).

30 inch pounds is 1LB at 30ins or 30Lb at 1in. Therefore, at 2ins it would be 15Lbs and at 4ins 7.5Lbs.

[Angler310]

Hey guys

what about the priced right drill press's a home depot and Lowes. I use 2 of them. $99.00 each and they work the nuts..

Mike

[mbroggi1]

Drill press? They look perfect but what about the speed slowest RPM I see is like 550 rpm can you give us more details on how you stir with a drill press?

Thanks in advance

[Spike-A-Pike]

Gents,

This looks like a job for HAZMAIL (aka: Pete da' Man).

When you need a new appoach, who ya' gonna' call???

Pete da' Man!

When your motors spinning too slow, who ya' gonna' call???

Pete da' Man!

That Pete is a bad m... Shut your mouth!!!!!

Pete da' Man!

Sometimes, I forget that I no longer play in a band any more, tarbender, another dark lauger...

[bassnfool]

If you use the table top drill press from Lowe's or Home Depot set the belt on the lowest speed (550 RPM) and use a 3" paint stirrer as your mixer. You'll have to cut off the paint stirrer to 7.25" length and make a plywood table top to bolt onto the drill press table so you can offset it at an angle. Cut out a cardboard cover to keep the splashing contained. I've used this setup for many thousands of stick baits with no problem. To speed up production, I've used a different pot and stirrer for each color of glitter to speed up the clean up process and eliminate cross contamination. You'll find it best if you only heat up one quart of plastic at a time with this setup. When you're done pouring, let the plastic cool, peel it out and remelt it when your pour that color combination again.

[mbroggi1]

Can we get a photo??????? of Drill Press Stiromatic?

[MACHINIST]

Bassnfool with this setup do you have any problem keeping the salt and the plastic mixed?I thought about a drill press but thought that the speed would be to much.Also how does this setup work for low volume or at the end of the pot?

[KcDano]

A pneumatic cylinder device could be fashioned to force a round disc slightly smaller than the diameter of the pot up and down The disc would have holes drilled into to aid the mixing of the plastic as it moves up and down. There would be several ways to accomplish the up and down movement. Could be as simple as a return spring and a solenoid working with a circuit to time the energizing of the solenoid which could be made variable to get the exact length of travel at any pressure.

[bassnfool]

Adjust the table height until the stirrer is about 1/8" from the bottom of the pot.The drill press mixes the glitter and salt just fine until you're down to about 1/8" from the bottom. That's what you peel out and save for the next time you pour that color.

[saint308]

Adjust the table height until the stirrer is about 1/8" from the bottom of the pot.The drill press mixes the glitter and salt just fine until you're down to about 1/8" from the bottom. That's what you peel out and save for the next time you pour that color.

Right on. I do not know anything about pneumatic solenoid springs moving up and down. However, I put mine about 1/8" from the bottom and go until I run out. Everything seems to work fine that way. Saint.

[Vodkaman]

I'm sorry, but something does not seem right here. Are we really talking 9 revs per second?

Don't you find you get an air bubble problem as it flies across the room!

I hope you have gotten everything bolted down real solid, before throwing the go switch.

[Delw]

I have one here that I made for a customer, that never picked it up. it works and its strong and if I remember right he said the motor was 15 or 20 bucks.

he gave me the plate a pot and the motor, I made the paddles.

I will try to get a pic up maybe this weekend.

like vodkaman said make sure you have the mixer bolted down or your going to have a mess even if its a really slow RPM they will be a twist effect when material is in it the thicker the material the worse it is going to be.

The motor is a dayton 4z146

motor ref number is zem6025-2

ther is also a gear drive below it. I am thinking its one unit with the first dayton number being that unit and the motor ref number being the motor number only.

I hadn't had time to look it up but had this thin sitting here in front of me for 6 months

[Delw]

now I can add the rest of the info on the paddles

The paddles are made out of 1/8" thick( you dont need to be that thick, its all we had). 2" angle iron then cut to the height you want.

it takes 4 piece of angle Iron. take each piece and a really heavy hammer and flatten them, the v that it leaves will add support and rigidity and it looks pretty cool so you can always said you intended them that way lol

then weld the ends to a round rod use a collar to attach the rod to the motor shaft.

before you weld the flattened angle iron pieces drill 1" or bigger dia holes 2 in each one altearnate them so the plastic moves better.

Delw

[Smallie]

I Googled Delw's Dayton info and got"

4Z146 25 RPM, 1/60hp, 115V

Run Torque 22 in. lbs. 7 ZEM 6025-2 1. 50 5 lb. $77.50

found it at http://www.electricmotorwarehouse.com/Dayton/3M104.htm

This is much slower than a drill press and is more consistent with previous posts on this site. As others have said, 550 RPM seems very fast for stirring.

Saint, how fast do you run the drill motor? Full, half, very slow?

[Delw]

I Googled Delw's Dayton info and got"

4Z146 25 RPM, 1/60hp, 115V

Run Torque 22 in. lbs. 7 ZEM 6025-2 1. 50 5 lb. $77.50

found it at http://www.electricmotorwarehouse.com/Dayton/3M104.htm

This is much slower than a drill press and is more consistent with previous posts on this site. As others have said, 550 RPM seems very fast for stirring.

Saint, how fast do you run the drill motor? Full, half, very slow?

wow that one is only 22inch lbs? I wonder if that is the gearbox inch lbs as well, Cause I can turn it on and hold it and it wont stop. its defiantly enough to turn plastic with. and thats with the paddles 1/2" inch from the edges of the prestone pot so they are about a 6" dia?

I am guessing machinist post if its the same motor and gear box combo will work just fine.

one other thing if your going over 50RPMS your going WAY TO FAST.

remember a 1" dia shaft running at 50 rpms equals about 400 rpms in constant surface footage.

for example turn a bicycle upside down spin the wheel look at the center. its slow now look at the tire its flying.

Another Words DONT be spinning a 4"-6" dia mixer at more than 50 RPMS or you will be sorry

Smallie thanks for looking that up I was too lazy.

[BASSV18]

I have been thinking of this to have not came up with a good idea yet would love to see pic when you get it made to get some ideas;)